Style fix for topAxis and added integration test

cypress/integration/rendering/gantt.spec.js

@@ -258,4 +258,40 @@ describe('Gantt diagram', () => {
         expect(svg).to.not.have.attr('style');
       });
   });
+    it('should render a gantt diagram with data labels at the top when topAxis is true', () => {
+    renderGraph(
+      `
+    gantt
+      dateFormat  YYYY-MM-DD
+      axisFormat  %d/%m
+      title Adding GANTT diagram to mermaid
+      excludes weekdays 2014-01-10
+
+      section A section
+      Completed task            :done,    des1, 2014-01-06,2014-01-08
+      Active task               :active,  des2, 2014-01-09, 3d
+      Future task               :         des3, after des2, 5d
+      Future task2               :         des4, after des3, 5d
+
+      section Critical tasks
+      Completed task in the critical line :crit, done, 2014-01-06,24h
+      Implement parser and jison :crit, done, after des1, 2d
+      Create tests for parser             :crit, active, 3d
+      Future task in critical line        :crit, 5d
+      Create tests for renderer           :2d
+      Add to mermaid                      :1d
+
+      section Documentation
+      Describe gantt syntax               :active, a1, after des1, 3d
+      Add gantt diagram to demo page      :after a1  , 20h
+      Add another diagram to demo page    :doc1, after a1  , 48h
+
+      section Last section
+      Describe gantt syntax               :after doc1, 3d
+      Add gantt diagram to demo page      : 20h
+      Add another diagram to demo page    : 48h
+      `,
+      { gantt: { topAxis: true } }
+    );
+  });
 });

src/defaultConfig.js

@@ -616,7 +616,7 @@ const config = {
      *| --- | --- | --- | --- | --- |
      *| topAxis | See notes | Boolean | 4 | True, False |
      *
-     ***Notes:**when this flag is set date labels will be added to the
+     ***Notes:** when this flag is set date labels will be added to the
 top of the chart
      *
      ***Default value false**.

src/diagrams/gantt/ganttRenderer.js

@@ -377,8 +377,8 @@ export const draw = function(text, id) {
         .style('text-anchor', 'middle')
         .attr('fill', '#000')
         .attr('stroke', 'none')
-        .attr('font-size', 10)
-        .attr('dy', '1em');
+        .attr('font-size', 10);
+      // .attr('dy', '1em');
     }
   }